Garmin Forerunner 10/15 Replacement Watch Band - Black - For Face Size: SMALLGarmin Replacement Watch Band Kit for Garmin Forerunner 10 15 (Small) Fits the slimmer version of Forerunner 10 15 (Small Watch Face Size). Manufacturer Part Number: 010 11251 44 The band size you need is dependent upon the size of your Forerunner's watch face. Generally, a female will wear the small face and a male will wear the large face. Forerunner 10 15 Watch Band Black Small. Keep your training on track and be stylish with these colored bands